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From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
To: bcasavan@sgi.com
Cc: netdev@vger.kernel.org, davem@davemloft.net,
	linux-kernel@vger.kernel.org
Subject: Re: AF_UNIX MSG_PEEK bug?
Date: Wed, 9 Jan 2008 20:04:32 +0900	[thread overview]
Message-ID: <200801092004.IJJ48416.FVQOtOLFSOJHMF@I-love.SAKURA.ne.jp> (raw)
In-Reply-To: <alpine.BSF.1.00.0801081556580.24286@pkunk.americas.sgi.com>

Hello.

Brent Casavant wrote:
> However, the program would occasionally get into a situation where
> a call to recv(sockfd, &buf, len, MSG_PEEK) returns some number
> of bytes less than the requested length, and persists in this state
> (i.e. retrying the call continues to return the same amount of data)
> even when more than sufficient data is known to have been successfully
> written to the socket.
Did you try MSG_WAITALL flag? See "man 2 recv".
A TCP socket handles data in bytes.
You cannot complain if the amount received by recv() is smaller than expected
unless you use MSG_WAITALL flag.

Thanks.

  parent reply	other threads:[~2008-01-09 11:04 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-01-08 22:27 Brent Casavant
2008-01-08 22:40 ` Rick Jones
2008-01-08 22:53   ` Tom Spink
2008-01-08 23:18     ` Brent Casavant
2008-01-08 23:39       ` Tom Spink
2008-01-08 23:46         ` Tom Spink
2008-01-09  0:08           ` Brent Casavant
2008-01-08 23:20   ` Brent Casavant
2008-01-09 11:04 ` Tetsuo Handa [this message]
2008-01-09 18:01   ` Brent Casavant
2008-01-10  0:01     ` Herbert Xu
2008-01-10  1:19       ` Brent Casavant
2008-01-10  2:50       ` Brent Casavant
2008-01-10 22:35         ` Brent Casavant
2008-01-10 22:36           ` Alan Cox

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